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Which compound is a diastereomer of the structure shown? ОН ОН ОН II III IV There are no diastereomers. ОТ 3 ОН .... IV

Which compound is a diastereomer of the structure shown? ОН ОН ОН II III IV There are no diastereomers. ОТ 3 ОН .... IV

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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**Understanding Diastereomers** When studying stereochemistry, identifying the relationship between different molecules is crucial. Diastereomers are a type of stereoisomer where the molecules have multiple chiral centers and are not mirror images of each other. **Question:** Which compound is a diastereomer of the structure shown? **Structure and Options:** 1. The structure shown has a chiral center with an OH (hydroxyl) group attached and can be depicted as follows: ![chiral structure with OH group](fig1.jpg) (depicted as the attached image's first structure) **Options:** - I: (depicted with a single chiral center without the OH group) - II: (depicted with the OH group on a chiral center, same orientation as the structure shown) - III: (depicted with the OH group on a chiral center, opposite orientation as the structure shown) - IV: (depicted with the OH group on a chiral center, mirrored from the initial structure) - Option: "There are no diastereomers." **Explanation of Structural Diagrams:** - **Option I:** This structure is lacking the OH group, making it an entirely different molecule as it is not chiral. - **Option II:** This is a mirror image of the original structure, and hence, is technically an enantiomer, not a diastereomer. - **Option III:** This structure also mirrors the original structure, making it another enantiomer. - **Option IV:** Here, the OH group is attached but differs in the physical orientation of its chiral center. This is not an exact mirror image; thus, it fits the definition of a diastereomer. The correct answer is **IV**, indicating it is a diastereomer due to the difference in spatial arrangement around the chiral center without being a mirror image. **Answer:** - IV
Transcribed Image Text:**Understanding Diastereomers** When studying stereochemistry, identifying the relationship between different molecules is crucial. Diastereomers are a type of stereoisomer where the molecules have multiple chiral centers and are not mirror images of each other. **Question:** Which compound is a diastereomer of the structure shown? **Structure and Options:** 1. The structure shown has a chiral center with an OH (hydroxyl) group attached and can be depicted as follows: ![chiral structure with OH group](fig1.jpg) (depicted as the attached image's first structure) **Options:** - I: (depicted with a single chiral center without the OH group) - II: (depicted with the OH group on a chiral center, same orientation as the structure shown) - III: (depicted with the OH group on a chiral center, opposite orientation as the structure shown) - IV: (depicted with the OH group on a chiral center, mirrored from the initial structure) - Option: "There are no diastereomers." **Explanation of Structural Diagrams:** - **Option I:** This structure is lacking the OH group, making it an entirely different molecule as it is not chiral. - **Option II:** This is a mirror image of the original structure, and hence, is technically an enantiomer, not a diastereomer. - **Option III:** This structure also mirrors the original structure, making it another enantiomer. - **Option IV:** Here, the OH group is attached but differs in the physical orientation of its chiral center. This is not an exact mirror image; thus, it fits the definition of a diastereomer. The correct answer is **IV**, indicating it is a diastereomer due to the difference in spatial arrangement around the chiral center without being a mirror image. **Answer:** - IV
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